study note cards
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| biosphere | the part of Earth that supports life, including the top portion of Earth's crust, all that waters that cover Earth's surface and surrounding atmosphere
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| carrying capacity | the largest numver of individuals of one species that an ecosystem can support over time
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| commensalism | a symbiotic relationship in which one organism benefits and the other is affected
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| community | all the populations in an ecosystem
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| consumer | organisms that cannot make their own energy-rich molecules
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| ecology | the study of interactions that occur among organisms and their enviroment
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| ecosystem | all the organisms living in an area and nonliving features of their enviroment
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| habitat | the place in which an organism lives
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| limiting factor | anything that restricts the number of individuals in a population
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| mutualism | a symbiotic relationship in which both species benefit
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| niche | how an organism survives;including its habitat how it obtains food and shelter, and how it avoids danger
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| parasitism | a symbiotic relationship in which one organism benefits but the other is harmed
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| population | all the organisms in an ecosystem that belong to the same species
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| producer | organisms that use an outside energy source, such the sun, to make energy-rich molecules
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| symbiosis | any close relationship between species
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| predator | any organism that exists by preying upon other organisms
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| prey | an animal hunted or seized for food, esp. by a carnivorous animal
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| competition | the act of competing; rivalry for supremacy
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| chemosynthesis | process in which producers make energy-rich nutrient molecules from chemicals
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| food web | model that shows the complex feeding relationship among organisms in the community
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| food pyramid | successive levels of predation in a food chain represented schematically as a pyramid because upper levels normally consist of decreasing numbers of larger predators
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| food chain | the chain from a food source to the ultimate consumer
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Created by:
cris
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